PT Radiator Air Scoop

[Richard Hayden]

Greg,No problem getting up to the window. But, I take it out upon leaving. Yes, left turns are much easier, just let go of the wheel.

Dick Hayden - '87 PT 38 - Lake Stevens, WA

----- Original Message -----

From: "Gregoryoc@aol.com"

To: "WanderlodgeForum@yahoogroups.com"

Sent: Wednesday, August 06, 2008 9:38 PM

Subject: [WanderlodgeForum] Re: PT Radiator Air Scoop

Scott, the discussion you started is of interest to me as I have
recent issues with heat and am always looking for a lesson. I
wanted to have input but didnt want to start a thread "Stupid scoop"
or "Scoops are good for Poop" and good thing because my good friend
DickH has one in bright stainless steel that sound like it takes up
the fastlane. Dick is it hard to pay tolls? and get up to the
drivethru windows? does it help with lefthand turns?

you can always just choose what to believe to prove your
hypothesis. everyone else can learn by considering the merits of all
the input. LeroyE, thanks

GregoryO'Connor
94ptRomolandCa

--- In "WanderlodgeForum%40yahoogroups.com", "Scott Forman"
<scottforman75@<WBR>...> wrote:
>
> If the scoop pushed more air through the radiator, it could lower
> operating temp to the point that the alarmastat doesn't kick in.
> More air=cooler, that is the whole point of the fan. I am not
> looking for lesson on how the colling system works, and if you
payed
> attention you would see that I just mentioned that I have a
freshly
> re-cored (i.e. NOT DIRTY) radiator in my bus. I am looking for
> people that have anecdotal stories about scoops, not for people
who
> are answering every question except the one I asked.
>
> Scott
>
> --- In "WanderlodgeForum%40yahoogroups.com", Leroy Eckert
> > wrote:
> >
> > First the scoop will not cool the radiator any quicker or cooler
or
> reduce the fan on off sequence because the water temp is
controlled
> by an instrument *Alarmstat* designated by BB. It the radiator is
> plugged up it ain't gonna cool, scoop, extra fans or anything
else.
> On most coaches through 1994 there is an Alarmstat which senses
the
> water temp and activates the fan to high mode and back to idle
mode
> constantly if the fan override and the chassis a/c is off. It
cycles
> between -+ 8 degrees. It was specified by BB at 195 degrees.
> Accordingly, the fan in idle mode spins between 200 and 600 rpm at
> engine rpm values 800-2100 rpm according to my BB manuals. So, if
> the radiator is not clean and good massive amounts of air will do
not
> good the result being the fan will cycle more often. In high mode,
> chassis a/c on; or fan override on; the fan runs at approx. 1800
rpm.
> The only thing that will stop the fan high/idle mode sequence
timing
> is a new radiator.
> > It makes a lot of sense. Bad radiator, no air flow, no
efficient
> cooling. A scoop is not going to help a bad radiator. It is that
> simple. Of course it may help for a bit if you remove the
Alarmstat,
> let the fan run constantly and you may see some reduced temps.
> > I have jacked with my bus using VMSpc for quite some time and I
> cannot prove the old wife's tale that the fan reduces mileage. I
have
> documents with lots of numbers on them that support my opinion. I
> realize opinions are like a$$holes, everyone has one. However, my
> numbers prove my statement. I long ago changed my Alarmstat to 190
> degrees after talking to BB and Detroit Diesel mechanics. I have
seen
> a 7% decrease in overall temps without a decrease in mileage. I
have
> a good radiator.
> > My conclusion is, the Birds did not have a problem when they
were
> built or there would have been a recall. 15-20 year old radiators
> need a good going over and all will be well. No scoop needed.
> > Think of an Alarmstat as a forced high temp thermostat, because
> that is what it is.
> >
> > Leroy Eckert
> > 1990 WB-40 Smoke N Mirrors
> > Dahlonega, GA
> > Royale Conversion
> >
> > --- On Wed, 8/6/08, Scott Forman <scottforman75@<WBR>> wrote:
> > From: Scott Forman <scottforman75@<WBR>>
> > Subject: [WanderlodgeForum] Re: PT Radiator Air Scoop
> > To: "WanderlodgeForum%40yahoogroups.com"
> > Date: Wednesday, August 6, 2008, 8:07 PM
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > I do not have a cooling problem, in fact I just re-
> cored my
> >
> > radiator. Just wondering if the scoop could give me the 5
degrees
> I
> >
> > need to keep the fan from kicking on...which as we all know saps
> fuel
> >
> > economy...during hot weather.
> >
> >
> >
> > Scott
> >
> >
> >
> > --- In WanderlodgeForum@ yahoogroups. com, "Gregory OConnor"
> >
> > wrote:
> >
> > >
> >
> > > Scott, when the engineered systems will no longer control the
> heat,
> >
> > > there is issue with the systems. to make things run cooler at
> more
> >
> > > stress, can only prove to allow more stress than engineered. I
> pust
> >
> > it
> >
> > > to the limits of heat befor I back off stress. A mod to help
> >
> > overcome
> >
> > > ambient temp influence like the radiator evaporative cooler
MikeH
> >
> > uses
> >
> > > is one mod I would like to try.
> >
> > >
> >
> > > GregoryO'Connor
> >
> > > 94ptRomolandCa
> >
> > >
> >
> > >
> >
> > >
> >
> > > --- In WanderlodgeForum@ yahoogroups. com, "Scott Forman"
> >
> > > <scottforman75@ > wrote:
> >
> > > >
> >
> > > > There was some talk a while back about fabricating an air
scoop
> >
> > for
> >
> > > the
> >
> > > > radiator grill on a PT to increase air flow through the
> >
> > radiator.
> >
> > > Did
> >
> > > > anyone install one? Does it seem to make a difference? How
> did
> >
> > you
> >
> > > > build it?
> >
> > > >
> >
> > > > Scott Forman
> >
> > > > 86 PT38
> >
> > > > Memphis
> >
> > > >
> >
> > >
> >
>